CN202031513U - Core-taking grabbing spring for drilling soft and broken stratum geological cores - Google Patents
Core-taking grabbing spring for drilling soft and broken stratum geological cores Download PDFInfo
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- CN202031513U CN202031513U CN2011201106151U CN201120110615U CN202031513U CN 202031513 U CN202031513 U CN 202031513U CN 2011201106151 U CN2011201106151 U CN 2011201106151U CN 201120110615 U CN201120110615 U CN 201120110615U CN 202031513 U CN202031513 U CN 202031513U
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Abstract
The utility model relates to a core-taking grabbing spring for drilling soft and broken stratum geological cores. The core-taking grabbing spring for drilling soft and broken stratum geological cores is characterized in that grabbing spring sheets of the core-taking grabbing spring are uniformly distributed along the circumference in a grabbing spring base, are in arc shapes bent inwards, are partially overlapped along the axial edge, and are in junket shapes. The core-taking grabbing spring is installed between a drill and a core tube. When in drilling, the grabbing spring sheets are propped up by the core, and the core enters the core tube. When in core taking, the grabbing spring sheets are inwards furled under the action of the pressure and frictional force of the core, are closed or semi-closed or tightly support the core, thereby the condition that the core entering the core tube falls off is avoided. By adopting the core-taking grabbing spring, the requirement on core extraction rate of soft stratum, including semi-flow modeling, soft modeling and hard modeling marl layer, silt layer and loosen sand bed, coal bed and broken stratum, including stratum broken zones, fault chippings, fault gouge, broken coal bed and the like can be satisfied, and the theoretical core extraction rate of the core-taking grabbing spring can be up to 100 percent. The core-taking grabbing spring can also be welded with a conventional hard rock clamp spring to be used for drilling and core taking of hard and broken geological cores.
Description
Technical field
The utility model relates to geology and mine and bores pick technology core drilling coring tool.
Background technology
At present, the core drilling technology at complete and ground consisting of hard rock is comparatively ripe both at home and abroad.But the CORING TECHNOLOGY for soft, broken stratum geological core drilling is still immature, show as: core drilling technology and the instrument of continuing to use complete and ground consisting of hard rock mostly, the rock core rate that easily comes off, cores is lower, can't satisfy geological prospecting and the scientific research requirement to the core drilling rate.
The utility model content
The utility model is lower in order to solve the above-mentioned existing core drilling technology rock core rate that easily comes off, cores, and can't satisfy geological prospecting and the scientific research problem to the requirement of core drilling rate, is used for coring of soft, broken stratum geological core drilling and grabs spring and provide a kind of.
Of the present utility modelly a kind ofly be used for coring of soft, broken stratum geological core drilling and grab spring, by lower limit cover, drill bit, upper limit cover, become the wire connection hoop, grab spring assembly, grab the spring arm and constitute, it is characterized in that: this is cored and grabs spring and be contained in drill bit by upper and lower spacing condom and become in the wire connection hoop, by becoming the wire connection hoop with drill bit and the basket of being threaded, it is uniform along grabbing spring pedestal inner periphery to grab reed, grab reed and inwardly be arc-shaped bend, the marginal portion is overlapping vertically to grab reed, be bamboo fish hamper shape chip architecture of the spring, can realize the sealing of rock core or semiclosed.Grab the reed bottom and adopt spot welding to be connected, form and grab spring assembly with grabbing the spring pedestal.Grab spring assembly and be sleeved on and grab in the spring arm, its two ends are set with upper and lower spacing cover.Upper and lower spacing cover is welded on drill bit respectively and becomes on the wire connection hoop.
Describedly a kind ofly be used for coring of soft, broken stratum geological core drilling and grab spring, it is characterized in that: this is cored and grabs spring and be installed between drill bit and the basket.When creeping into, rock core struts grabs reed and enters basket; When coring, grab reed and under rock core pressure and frictional force effect, inwardly draw in, grab the reed sealing or semiclosedly stop or hold out against rock core, thereby the rock core of avoiding entering in the basket comes off.
This core grab spring assembly can also and the welding of conventional hard rock jump ring be used for hard, broken formation core core drilling.
The beneficial effects of the utility model: the utility model can increase substantially the core rate of core drilling in soft, broken stratum by the industrial experimentation proof.Its advantage is: owing to can realize sealing or semiclosed to rock core from grabbing on the spring project organization, thus avoid rock core to come off.Its theoretical core recovery percentage can reach 100%, can satisfy incompetent bed to greatest extent, comprise half-flow plastic, soft mud stone layer and the mud of moulding, moulding firmly, loose sand bed, coal seam and broken formation comprise the requirement of soft, broken stratum such as stratum crushing band, tomography chip, fault gouge, broken coal seam to core recovery percentage.Soft to improving, broken formation core probing quality, efficient and economic benefit are significant.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is used for coring of soft, broken stratum geological core drilling to grab spring structure and sectional view is installed.
Fig. 2 grabs reed 6 unfolding state figures.
Fig. 3 grabs spring assembly figure.
Fig. 4 is that Fig. 3 grabs the A of spring assembly to partial sectional view.
Fig. 5 grabs spring assembly and conventional hard rock jump ring welding schematic diagram.
Fig. 6 is that the A of Fig. 5 is to partial sectional view.
The specific embodiment
Shown in accompanying drawing 1～6, of the present utility modelly a kind ofly be used for coring of soft, broken stratum geological core drilling and grab spring, by lower limit cover 1, drill bit 2, upper limit cover 4, become wire connection hoop 3, grab spring pedestal 5, grab reed 6, grab spring arm 7 and constitute.
As shown in Figure 1, this is cored and grabs spring by upper and lower spacing cover 4,1, is sleeved in drill bit 2 and the change wire connection hoop 3, by becoming wire connection hoop 3 with drill bit 2 and the basket 8 of being threaded.
As shown in Figure 2, grabbing reed 6 deployed conditions is fan shape.
Shown in Fig. 3,4, it is uniform along grabbing spring pedestal 5 inner peripherys to grab reed 6, grabs reed and inwardly is arc-shaped bend, and the marginal portion is overlapping vertically to grab reed 6, is bamboo fish hamper shape chip architecture of the spring.Can realize the sealing of rock core or semiclosed.Grab the reed bottom and adopt spot welding to be connected, form and grab spring assembly with grabbing the spring pedestal.Grab spring assembly and be sleeved on and grab in the spring arm 7, its two ends are set with upper and lower spacing cover 4,1.Upper and lower spacing cover is welded on drill bit 2 respectively and becomes on the wire connection hoop 3.Grab reed 6 and inwardly be arc-shaped bend, the marginal portion is overlapping vertically, can guarantee to grab reed 6 and open back recovery automatically, thereby raising is grabbed the entire compression intensity of spring and is helped using repeatedly.
Shown in Fig. 5,6, this grabs spring assembly can also be used for hard, broken formation core core drilling with conventional hard rock jump ring 9 welding.
Describedly a kind ofly be used for coring of soft, broken stratum geological core drilling and grab spring.When creeping into, rock core struts grabs reed 6 and enters basket 8; When coring, grab reed 6 and under rock core pressure and frictional force effect, inwardly draw in, sealing or semiclosedly stop or hold out against rock core, thus the rock core of avoiding entering in the basket comes off.
Operating principle
The utility model is installed between drill bit and the basket, and when creeping into, drill bit 2 formation drillings drive and to grab spring assembly, upper and lower spacing cover 4,1, become wire connection hoop 3 baskets 8 and creep into downwards, and rock core struts grabs reed 6 and enter basket 8; Creep into when finishing to core, grab reed 6 and draw in, sealing or semiclosedly stop or hold out against rock core that the rock core of avoiding entering in the basket comes off.Make the rock core in the basket together be suggested outside the hole with basket; After carrying brill, dismantle the drill bit taking-up and grab spring assembly, eject rock core, creep into the purpose of coring thereby reach.
Technological expansion
As Fig. 5, shown in Figure 6, of the present utility model core grab spring assembly can also and 9 welding of conventional hard rock jump ring be used for hard, broken formation core core drilling.
Claims (3)
1. one kind is used for soft, spring is grabbed in coring of broken stratum geological core drilling, this is cored and grabs spring by last, lower limit cover (4,1) is sleeved in drill bit (2) and the change wire connection hoop (3), by becoming wire connection hoop (3) with drill bit that is threaded (2) and basket (8), it is uniform along grabbing spring pedestal (5) inner periphery to grab reed (6), grab reed (6) and inwardly be arc-shaped bend, the marginal portion is overlapping vertically to grab reed (6), be bamboo fish hamper shape chip architecture of the spring, grab reed (6) bottom and grab spring pedestal (5) and adopt spot welding to connect to form to grab spring assembly, grabbing spring assembly is sleeved on and grabs in the spring arm (7), its two ends are set with, lower limit cover (4,1),, the lower limit cover is welded on drill bit (2) respectively and becomes on the wire connection hoop (3).
2. according to claim 1ly a kind ofly be used for coring of soft, broken stratum geological core drilling and grab spring, it is characterized in that: this is cored and grabs spring and be mounted between drill bit and the basket.
3. according to claim 1ly a kind ofly be used for coring of soft, broken stratum geological core drilling and grab spring, it is characterized in that: this core grab spring can also and conventional hard rock jump ring (9) welding be used for hard, broken formation core core drilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201106151U CN202031513U (en) | 2011-04-15 | 2011-04-15 | Core-taking grabbing spring for drilling soft and broken stratum geological cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201106151U CN202031513U (en) | 2011-04-15 | 2011-04-15 | Core-taking grabbing spring for drilling soft and broken stratum geological cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031513U true CN202031513U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201106151U Expired - Lifetime CN202031513U (en) | 2011-04-15 | 2011-04-15 | Core-taking grabbing spring for drilling soft and broken stratum geological cores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031513U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168117A (en) * | 2015-09-30 | 2016-11-30 | 洛阳武轩重工机械有限公司 | A kind of plate retaining wall follow-up reaming bit |
| CN107269271A (en) * | 2017-07-25 | 2017-10-20 | 刘荣亮 | A kind of coal mine down-hole drilling coal sample extraction element |
| US10107055B2 (en) | 2016-09-01 | 2018-10-23 | Baker Hughes, A Ge Company, Llc | Core catcher |
| CN109138882A (en) * | 2018-09-03 | 2019-01-04 | 吉林大学 | Gas hydrates refrigerating and pressure keeping Sampling driller and sampling method |
| CN109184606A (en) * | 2018-08-13 | 2019-01-11 | 四川大学 | Cut core apparatus |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
| CN110397415A (en) * | 2019-07-15 | 2019-11-01 | 中国地质大学（武汉） | A kind of reed-type coring tool and preparation method thereof based on 4D printing technique |
-
2011
- 2011-04-15 CN CN2011201106151U patent/CN202031513U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168117A (en) * | 2015-09-30 | 2016-11-30 | 洛阳武轩重工机械有限公司 | A kind of plate retaining wall follow-up reaming bit |
| US10107055B2 (en) | 2016-09-01 | 2018-10-23 | Baker Hughes, A Ge Company, Llc | Core catcher |
| CN107269271A (en) * | 2017-07-25 | 2017-10-20 | 刘荣亮 | A kind of coal mine down-hole drilling coal sample extraction element |
| CN109184606A (en) * | 2018-08-13 | 2019-01-11 | 四川大学 | Cut core apparatus |
| CN109138882A (en) * | 2018-09-03 | 2019-01-04 | 吉林大学 | Gas hydrates refrigerating and pressure keeping Sampling driller and sampling method |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
| CN110397415A (en) * | 2019-07-15 | 2019-11-01 | 中国地质大学（武汉） | A kind of reed-type coring tool and preparation method thereof based on 4D printing technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |
|
| CX01 | Expiry of patent term |